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Titolo:
Gradient coil design considerations for iron core interventional magnets
Autore:
Ersahin, A; Bronskill, MJ; Henkelman, RM; Collick, B; Hinks, RS;
Indirizzi:
Univ5,oronto, Sunnybrook Hlth Sci Ctr, Dept Med Biophys, Toronto, ON M4N 3M Univ Toronto Toronto ON Canada M4N 3M5 pt Med Biophys, Toronto, ON M4N 3M
Titolo Testata:
JMRI-JOURNAL OF MAGNETIC RESONANCE IMAGING
fascicolo: 5, volume: 8, anno: 1998,
pagine: 1145 - 1153
SICI:
1053-1807(199809/10)8:5<1145:GCDCFI>2.0.ZU;2-6
Fonte:
ISI
Lingua:
ENG
Soggetto:
MR-IMAGING SYSTEM;
Keywords:
interventional MRI; open-configuration magnet; gradient coils; Eddy currents; pole pieces; laminated poles;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Clinical Medicine
Citazioni:
17
Recensione:
Indirizzi per estratti:
Indirizzo: Henkelman, RM Univ665B,nto, Sunnybrook Hlth Sci Ctr, Dept Med Biophys, 2075 Bayview Ave,S Univ Toronto 2075 Bayview Ave,S665B Toronto ON Canada M4N 3M5
Citazione:
A. Ersahin et al., "Gradient coil design considerations for iron core interventional magnets", J MAGN R I, 8(5), 1998, pp. 1145-1153

Abstract

The requirements for access and imaging performance compete in the design of open-concept MR magnets and gradient coils. We conducted a theoretical and experimental investigation of gradient coil design using both solid and laminated pole piece construction to determine whether adequate eddy current control can be obtained without shielded gradient coils while maintaininggood patient access and high gradient performance. Eddy currents, gradientcharacteristics, gradient efficiency, and magnet openness are compared andcontrasted for various construction options based on a compact, .27 T ironyoke magnet. The resulting pole pieces and gradient coils have high efficiency for an interventional open-configuration magnet while taking up minimal space between the poles for improved patient access.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 25/11/20 alle ore 15:46:53